Rug-binding attachment for sewing machines



Feb. 6, 1934. R. J. sAlLE-.R

RUG BINDING ATTACHMENT FOR SEWING MACHINES 1932 2 Sheets-Sheet l Filed March lO Feb. 6, 1934. R J, sAlLER 1,946,241

RUG BINDING ATTACHMENT FOR SEWING MACHINES Filed March l0, 1932 2 Sheets-Sheet 2 Aist " needle-hole 8.

Patented Feb. 6, 1934 NETE@ STATES mais PATENT GFFICE RUG-BINDING ATTACHMENT FOR SEWING MACHINES Rudolph J. Sailer, Townley, N. J., assigner to The Singer Manufacturing Company,

Elizabeth,

4 Claims.

This invention relates to binding attachments for sewing machines and has for an object to provide a binding attachment which will guide and present to the sewing machine needle a fringed or other similar form of binding material.

With the above and other objects in view, as will hereinafter appear, the invention comprises the devices, combinations and arrangements of parts hereinafter set forth and illustrated in the accompanying drawings of a preferred embodiment of the invention, from which the several features of the invention and the advantages attained thereby will be readily understood by those skilled in the art.

Fig. 1 is a perspective View of a binding attachment embodying the invention and applied to a sewing machine; the work being shown in its passage through the attachment and machine. Fig. 2 is a top plan view of the attachment in working position on the bed of the sewing machine. Fig. 3 is a front elevation of the attachment. Fig. 4 is a left side elevation of the attachment. Fig. 5 is a section on line 5 5, Fig. 2. Fig. 6 is a perspective View of the binder-head looking toward its delivery end. Fig. '7 is a horizontal section along the line 7-7, Fig. 4, and Fig. 8 is a sectional view of the finished work shown in Fig. 1.

1 represents the bed of a sewing machine having the usual overhanging head 2 supporting the reciprocating needle 3, presser-foot 4 and walking foot 5; which latter cooperates, as usual, with the lower four-motion feed-dog 6 rising through slots 7 in the throat-plate 8 having the Secured flatwise upon the bed 1 by screws 9 are the supporting plates 10 and 11. The screws 9 pass through registering slots 12 in the plates 10 and 11 to permit adjustment of said plates toward or away from the line of seamformation. The edge of the plate 11 nearer the line of seam-formation is extended upwardly to form a rib 13. Secured flatwise against the face of the rib 13 by soldering or otherwise is the upturned edge 14 of a piece of sheet-metal which is folded back and forth at 15, 16 and 17 to form the binder-head b including a lower wall 18, an upper wall 19 and two intermediate walls 20. The walls 18, 19 and 2O are spaced apart to form passageways 2l, 22 and 23. The passageway 22 receives and guides the edge 24 of the material 24 to be bound. The passageways 21 and 23 receive and guide the lower and upper plies 25 and 26, respectively, of the longitudinally folded binding strip which includes a fringed portion 27 extending outwardly away from the fold adjoining the plies 25 and 26. The upper wall 19 is bent over at 28 so that its free edge 29 is spaced from the bottom wall 18 and upturned edge 14 to form a gap for passage of the fringe 27 of the binding strip. There is preferably secured on top of the upper wall 19 a fringe defiector 30 to shift any displaced fringe-strands to one side of the needle 3. The base or bottom wall 18 is cut away at 31 to clear the feed-dog 6 and is supplied at the side of the feed-dog 6 and needle-hole 8 with an edge-guiding wall 32 for the material issuing from the binder-head. The intermediate walls are cut away at 20' at an angle of 45, as shown best in Fig. 6, to facilitate delivery of the rugedge in snug engagement with the binding strip. i

The supporting plate 10 is extended forwardly beyond the front edge of the sewing machine bed 1 and has an upwardly bent tongue 33 carrying a strip-guide including the vertically troughshaped guide channel 34 having a vertical strip- 5 guiding wall 35 secured along one edge only to the front wall 36 of the trough. The free edge 37 of the strip-guide 35 is spaced from the rear wall 38 of the trough to form a gap for passage of the fringe 27. After passing through the trough under the guide 35, the binding strip 25, 26 is opened out dat and is bent around the inclined guide-post 39, as shown in Fig. 1. After passing the guide-post 39, the opened out folds 25, 26 of the binding strip are gradually brought together again as they approach and enter the binder-head b.

Having thus set forth the nature of the invention, what I claim herein isz- 1. A rug-binding attachment for sewing machines comprising, a supporting plate adapted for attachment to the bed of a sewing machine, a binder-head comprising a sheet of metal bent back and forth to form four spaced walls, the free edge of the upper wall being spaced from the lower wall to form a gap for passage of the binding fringe, and a fringe deiiector disposed on top of the upper wall and inclined toward said gap.

2. The combination with a binder-head, of a strip-guide disposed in advance of said binderhead and having a trough-shaped portion and a strip-guiding wall secured along one edge only to an inside wall of the trough to form a substantially fiat passage for an initially folded binding strip said strip-guide also having a straight edgeportion at an angle to said passageway around which an initially folded binding strip emerging from the trough is bent and opened out fiat in its passage to the binder-head.

fir

formed along one edge with an upstanding Wall, and a binder-head comprising a sheet of metal secured along one edge to said upstanding wall and folded back and forth to form substantially flat and parallel lower, upper, and intermediate walls, the free edge of the upper wall being bent to extend downwardly and being spaced laterally from said upstanding Wall and above said lower Wall.

RUDOLPH J. SAILER. 

